1 tn The word “him” is not in the Greek text but is implied. Direct objects were often omitted in Greek when clear from the context, but must be supplied for the modern English reader.
2 tn The participle βλασφημούντων (blasfhmountwn) has been taken temporally. The direct object (“him”) is implied rather than expressed and could be impersonal (“it,” referring to what Paul was saying rather than Paul himself), but the verb occurs more often in contexts involving defamation or slander against personal beings (not always God). For a very similar context to this one, compare Acts 13:45. The translation “blaspheme” is not used because in contemporary English its meaning is more narrowly defined and normally refers to blasphemy against God (not what Paul’s opponents were doing here). What they were doing was more like slander or defamation of character.
3 tn Grk “shaking out his clothes, he said to them.” L&N 16:8 translates Acts 18:6 “when they opposed him and said evil things about him, he protested by shaking the dust from his clothes.” The addition of the verb “protested by” in the translation is necessary to clarify for the modern reader that this is a symbolic action. It is similar but not identical to the phrase in Acts 13:51, where the dust from the feet is shaken off. The participle ἐκτιναξάμενος (ektinaxameno") has been translated as a finite verb due to requirements of contemporary English style.
sn He protested by shaking out his clothes. A symbolic action of protest, similar but not identical to the practice of shaking the dust off one’s feet (see Acts 13:51). The two symbolic actions are related, however, since what is shaken off here is the dust raised by the feet and settling in the clothes. The meaning is, “I am done with you! You are accountable to God.”
4 sn Your blood be on your own heads! By invoking this epithet Paul declared himself not responsible for their actions in rejecting Jesus whom Paul preached (cf. Ezek 33:4; 3:6-21; Matt 23:35; 27:25).